 |
Fluorescence and Structure of Methylated Acridin-9-ylthioureas
Kristian, P., Balentová, E., Bernát, J., Imrich, J., Sedlák, E., Danihel, I., Böhm, S., Prónayová, N., Klika, K. D., Pihlaja, K. and Baranová, J. Fluorescence and Structure of Methylated Acridin-9-ylthioureas Chemical Papers, Vol.58, No. 4, 2004, 268-275
|
|
|
Document type:
|
Článok z časopisu / Journal Article |
|
Collection:
|
Chemical papers
|
| |
| Attached Files |
| Name |
Description |
MIMEType |
Size |
Downloads |
n584a268.pdf
|
584a268.pdf |
application/pdf |
208.28KB |
0 |
| Author(s) |
Kristian, P.
Balentová, E.
Bernát, J.
Imrich, J.
Sedlák, E.
Danihel, I.
Böhm, S.
Prónayová, N.
Klika, K. D.
Pihlaja, K.
Baranová, J.
|
| Title |
Fluorescence and Structure of Methylated Acridin-9-ylthioureas
|
| Journal name |
Chemical Papers
|
| Publication date |
2004
|
| Year available |
2004
|
| Volume number |
58
|
| Issue number |
4
|
| ISSN |
0366-6352
|
| Start page |
268
|
| End page |
275
|
| Place of publication |
Poland
|
| Publisher |
Versita
|
| Collection year |
2004
|
| Language |
english
|
| Subject |
250000 Chemical Sciences
250300 Organic Chemistry
|
| Abstract/Summary |
Fluorescence and structure of acridin-9-ylthioureas with primary amino rest and their Smethylated products have been studied. The synthesized 1-(acridin-9-yl)-3-alkyl-S-methylisothiuronium iodides exhibit about one order increased fluorescence in comparison with corresponding thioureas. The structure of products obtained by methylation reactions was confirmed by NMR techniques including PDQF-COSY, selective INEPT, NOE difference experiments, and quantumchemical calculations (AM1, ab initio). A free rotation of 9-substituents in relation to acridine skeleton has been found. The conformers of acridinylisothioureas are in E-configuration relative to the C==N bond with more favourable imino (C-9==N) tautomeric structure.
|
|
|
|
